CN108909850B - Active ejecting self-locking limiting energy absorption device of instrument board and instrument board - Google Patents
Active ejecting self-locking limiting energy absorption device of instrument board and instrument board Download PDFInfo
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- CN108909850B CN108909850B CN201810602910.5A CN201810602910A CN108909850B CN 108909850 B CN108909850 B CN 108909850B CN 201810602910 A CN201810602910 A CN 201810602910A CN 108909850 B CN108909850 B CN 108909850B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0004—Frontal collision
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0053—Legs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R2021/0273—Occupant safety arrangements or fittings, e.g. crash pads automatically movable to an operative position, e.g. in case of collision or impending collision
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- Instrument Panels (AREA)
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Abstract
The invention discloses an instrument panel active ejection self-locking limiting energy absorption device and an instrument panel. The active popping self-locking limiting energy absorption device comprises a jacking device, a self-locking limiting structure and a tearing energy absorption structure, wherein the end part of the jacking device is fixed on an instrument board, the self-locking limiting structure is arranged on the side wall, close to the instrument board, of the jacking device, the tearing energy absorption structure is arranged on the side wall, far away from the instrument board, of the jacking device, and the end part, far away from the jacking device, of the tearing energy absorption structure is fixed on a vehicle body. When the vehicle is in frontal collision, the jacking device jacks the instrument panel forwards, when the instrument panel moves for a preset distance, the self-locking limiting structure locks the instrument panel, and when the legs of a human body are in contact with the instrument panel, the tearing energy absorption structure is torn and deformed. The surface of the instrument panel far away from the human body is provided with the active ejecting self-locking limiting energy absorption device. The invention has simple structure and lower cost, and can effectively reduce the harm of frontal collision to the legs of the human body and ensure that the motion posture of the human body after collision is in the best state.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an instrument panel active ejection self-locking limiting energy absorption device and an instrument panel.
Background
The main direction of the modern automobile technology development is safety, environmental protection and energy conservation. Wherein, the automobile safety is directly related to the lives and properties of people. The research on the safety of automobiles is generally divided into two major categories, active safety and passive safety. Active safety refers to taking safety measures before a traffic accident occurs. Accidents are avoided as much as possible. Passive safety refers to the fact that when an accident occurs, the injury degree of drivers, passengers and pedestrians outside the automobile is reduced as much as possible by utilizing the structural design of the automobile and a passive safety device. With the increasing automobile holding amount and the increasing automobile speed in China, automobile collision accidents are on the rise in recent years. Traffic accidents of automobiles are classified into frontal collision, side collision, rear collision and pedestrian collision. When the automobile running at high speed has accidental frontal collision, the legs of the passengers impact the instrument panel and are easily impacted by the bracket in the instrument panel, so that the shin bones of the legs are damaged. In NCAP (new car crash test), the thigh and shank scores of dummy have become an important research item for assessing the star rating of car models, which also prompts the automobile manufacturers to continuously improve and develop related safety protection devices.
The problems that the injury to the legs of the human body caused by the frontal collision and the optimization of the motion posture of the human body after the collision are always difficult to solve are solved, the instrument board shape is mainly optimized aiming at the injury to the legs of the human body caused by the frontal collision at present, the overall structure is complex due to the optimization of the instrument board shape, the manufacturing cost is high, the effect is single and not obvious, the injury to the legs of the human body caused by the frontal collision cannot be well reduced, and meanwhile, no effective optimization method exists aiming at the motion posture of the human body after the frontal collision.
In conclusion, the active ejecting self-locking energy absorption device for the instrument panel and the instrument panel are simple in structure, low in manufacturing cost and capable of effectively reducing the damage of a frontal collision to the legs of a human body and enabling the motion posture of the human body after the collision to be in the optimal state.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an active ejection self-locking energy-absorbing device for an instrument panel and an instrument panel, which have simple structure and low manufacturing cost, and can effectively reduce the damage of a frontal collision to the legs of a human body and make the motion posture of the human body after the collision in an optimal state, so as to optimize the damage of the frontal collision to the legs of the human body and the motion posture of the human body after the collision.
In order to solve the technical problems, the invention provides an active ejecting self-locking limiting energy absorption device for an instrument panel, which comprises a lifter, a self-locking limiting structure and a tearing energy absorption structure, wherein the end part of the lifter is fixed on the instrument panel, the self-locking limiting structure is arranged on the side wall of the lifter close to the instrument panel, the tearing energy absorption structure is arranged on the side wall of the lifter far away from the instrument panel, and the end part of the tearing energy absorption structure far away from the lifter is fixed on a vehicle body;
the jacking device is used for jacking the instrument panel forwards when the vehicle has a frontal collision so as to enable the instrument panel to move towards the direction close to the legs of the human body;
the self-locking limiting structure is used for locking the instrument panel when the instrument panel moves for a preset distance;
the tearing energy-absorbing structure is used for tearing and deforming to absorb energy after the legs of a human body are contacted with the instrument panel.
Furthermore, the jacking device comprises a jacking rod, an electronic detonation device and a guide pipe which is hollow inside and open at the top, the jacking rod is movably arranged in the guide pipe, the top of the jacking rod protrudes out of the top of the guide pipe and then is fixedly connected with the instrument panel, the electronic detonation device is arranged in the guide pipe and is positioned between the bottom of the guide pipe and the bottom of the jacking rod, and the self-locking limiting structure is arranged on the side wall of the guide pipe close to the top;
the electronic ignition device is used for igniting when the vehicle is in frontal collision and jacking the jacking rod forwards during ignition so as to enable the jacking rod to move along the axial direction of the guide pipe;
the jacking rod is used for jacking the instrument panel forwards under the pushing of the electronic detonation device so as to enable the instrument panel to move towards the direction close to the legs of the human body;
the self-locking limiting structure is used for locking the jacking rod and the instrument panel when the bottom of the jacking rod moves to the top of the guide pipe, so that the instrument panel is kept at a preset position.
Furthermore, the tearing energy absorption structure comprises a tearing part and a fixing part which are integrally formed, wherein one end of the fixing part is fixedly connected with the automobile body, and the other end of the fixing part is fixedly connected with the tearing part;
the tip that the automobile body was kept away from to the fixed part has a breach, tear the portion and include integrated into one piece's first tear portion and second tear the portion, first tear the portion and fix breach department, the second is torn the portion and is fixed the pipe is close to on the lateral wall of bottom.
Furthermore, the number of the tearing energy-absorbing structures is multiple, and the plurality of tearing energy-absorbing structures are uniformly distributed on the side wall, close to the bottom, of the conduit.
Furthermore, it is a plurality of from locking limit structure evenly distributed on the pipe is close to the lateral wall at top.
Further, a mounting groove is formed in the side wall, close to the top, of the guide pipe, and the self-locking limiting structure is arranged in the mounting groove.
Specifically, the self-locking limiting structure is a locking hook.
Furthermore, gunpowder for igniting the electronic ignition device is arranged between the bottom of the guide pipe and the bottom of the jacking rod.
Furthermore, the jacking devices are multiple and are uniformly distributed on the surface, far away from the human body, of the instrument board.
Correspondingly, the invention also discloses an instrument panel, wherein the surface of the instrument panel far away from the human body is provided with the instrument panel active popup self-locking limiting energy absorption device.
The implementation of the invention has the following beneficial effects:
(1) the active ejecting self-locking energy absorption device comprises a jacking device, a self-locking limiting structure and a tearing energy absorption structure, wherein when frontal collision occurs, an instrument panel positioned in front of a knee of a human body is actively ejected under the action of the jacking device, so that the instrument panel moves towards the direction close to the leg of the human body, the instrument panel is locked by the self-locking limiting structure when moving for a preset distance, after the knee is contacted with the instrument panel, the impacted instrument panel and the jacking device linearly move backwards, the tearing energy absorption structure is torn and deformed under the driving of the linear backwards movement of the instrument panel and the jacking device, and starts to tear and absorb energy, so that the damage to the leg and the upper half of the human body is greatly reduced, meanwhile, the linear backwards movement of the instrument panel can ensure the integral movement posture of the human body, the movement posture of the human body is in the optimal state, and the safety score of;
(2) the active ejection self-locking energy absorption device can greatly reduce the damage of the front collision to the legs and the upper half of the human body and simultaneously ensure the integral motion posture of the human body only by the mutual matching of the three parts of the jacking device, the self-locking limiting structure and the tearing energy absorption structure;
(3) the active pop-up self-locking energy absorption device is arranged on the instrument panel, and the shape of the instrument panel does not need to be improved, namely the structure of a vehicle does not need to be improved, so that the active pop-up self-locking energy absorption device can adapt to different vehicle types, and has wider application scenes and range.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a connection structure between an active ejection self-locking limiting energy absorption device of an instrument panel and the instrument panel;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural diagram of an active ejecting self-locking limiting energy absorbing device of an instrument panel of the invention;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a top view of FIG. 3;
FIG. 6 is a schematic structural diagram showing the positional relationship among the electric detonating apparatus, the lifting rod and the guide tube of the present invention;
FIG. 7 is a schematic structural view of a tear energy absorbing structure of the present invention;
FIG. 8 is a schematic structural view of a fixing portion of the present invention;
FIG. 9 is a schematic view of the structure of the tear-out portion of the present invention;
FIG. 10 is a schematic view of the position relationship between the catheter and the self-locking limit structure of the present invention;
fig. 11 is a schematic structural view of the self-locking limit structure of the present invention.
Wherein the reference numerals in the figures correspond to: 1-instrument panel, 2-jacking device, 201-jacking rod, 202-electronic detonation device, 203-guide pipe, 3-self-locking limiting structure, 4-tearing energy-absorbing structure, 401-tearing part, 4011-first tearing part, 4012-second tearing part, 402-fixing part, 4021-notch and 5-mounting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1
As shown in fig. 1-2, the invention discloses an instrument panel active ejection self-locking limiting energy absorption device, which is arranged on an instrument panel 1, the number of the instrument panel active ejection self-locking limiting energy absorption devices is multiple, preferably four, and four dynamic ejection self-locking limiting energy absorption devices are uniformly distributed on the surface of the instrument panel far away from a human body, specifically, at four corners of an arc-shaped instrument panel.
Continuing as shown in fig. 1-2, the active pop-up self-locking limiting energy absorption device for the instrument panel comprises a jacking device 2, a self-locking limiting structure 3 and a tearing energy absorption structure 4, wherein the end part of the jacking device 2 is fixed on the instrument panel 1, the self-locking limiting structure 3 is arranged on the side wall of the jacking device 2 close to the instrument panel 1, the tearing energy absorption structure 4 is arranged on the side wall of the jacking device 2 far away from the instrument panel 1, and the end part of the tearing energy absorption structure 4 far away from the jacking device 2 is fixed on a vehicle body;
the jacking device 2 is used for jacking the instrument panel 1 forwards when the vehicle has a frontal collision so as to enable the instrument panel 1 to move towards the direction close to the legs of the human body;
the self-locking limiting structure 3 is used for locking the instrument panel 1 when the instrument panel 1 moves for a preset distance;
and the tearing energy-absorbing structure 4 is used for tearing and deforming to absorb energy after the legs of the human body are contacted with the instrument panel 1.
In addition, active ulcerate of this embodiment is from locking means still includes the controller, and this controller is connected with sensor and the jacking ware electricity that is used for detecting the frontal collision respectively, and the vehicle takes place the frontal collision back, and the sensor can feed back the relevant information of collision to the controller, and the controller judges whether take place the frontal collision, if so makes control jacking ware forward jacking the instrument board, makes the instrument board move to the direction that is close to human shank.
In the embodiment, when a frontal collision occurs, the instrument panel positioned in front of the knee of the human body is actively ejected under the action of the jacking device, so that the instrument panel moves towards the direction close to the leg of the human body, the instrument panel is locked by the self-locking limiting structure when moving for a preset distance, after the knee is contacted with the instrument panel, the impacted instrument panel and the jacking device move backwards linearly, the tearing energy absorption structure is torn and deformed under the driving of the linear backward movement of the instrument panel and the jacking device, and starts to tear and absorb energy, so that the injury to the leg and the upper half of the human body is greatly reduced, and meanwhile, the linear backward movement of the instrument panel can ensure the overall motion posture of the human body, so that the motion posture of the human body is in the best state, and the safety score.
Example 2
As shown in fig. 2, the invention discloses an instrument panel active ejection self-locking limiting energy absorption device, which is arranged on an instrument panel 1, the number of the instrument panel active ejection self-locking limiting energy absorption devices is multiple, preferably four, and four dynamic ejection self-locking limiting energy absorption devices are uniformly distributed on the surface of the instrument panel far away from a human body, specifically, distributed at four corners of an arc-shaped instrument panel.
As shown in fig. 3 to 5, the active pop-up self-locking limiting energy absorbing device for an instrument panel in this embodiment includes a lifter 2, a self-locking limiting structure 3, and a tearing energy absorbing structure 4, an end of the lifter 2 is fixed on the instrument panel 1, the self-locking limiting structure 3 is disposed on a side wall of the lifter 2 close to the instrument panel 1, the tearing energy absorbing structure 4 is disposed on a side wall of the lifter 2 far from the instrument panel 1, and an end of the tearing energy absorbing structure 4 far from the lifter 2 is fixed on a vehicle body.
Continuing to fig. 3 and 6, the jack 2 includes a jack rod 201, an electric detonating device 202 and a hollow interior and open-topped conduit 203, the jacking rod 201 is movably arranged in the guide pipe 203, the top of the jacking rod protrudes out of the top of the guide pipe 203 and then is fixedly connected with the instrument panel 1, the electric igniter 202 and the ignitable explosive are arranged in the guide pipe 203 and between the bottom of the guide pipe 203 and the bottom of the lifting rod 201, the self-locking limiting structures 3 are a plurality of self-locking limiting structures 3 which are uniformly distributed on the side wall of the guide pipe 203 close to the top, the number of the tearing energy-absorbing structures 4 is multiple, the tearing energy-absorbing structures 4 are uniformly distributed on the side wall of the conduit 203 close to the bottom, the jacking devices 2 are multiple, and the jacking devices 2 are uniformly distributed on the surface, far away from the human body, of the instrument panel 1.
As shown in fig. 7 to 9, the tear energy absorbing structure 4 includes a tear portion 401 and a fixing portion 402, which are integrally formed, and one end of the fixing portion 402 is fixedly connected to the vehicle body, and the other end is fixedly connected to the tear portion 401; the whole shape of fixed part 402 is the character cut in bas-relief, and its tip of keeping away from the automobile body has a breach 4021, tear portion 401 including integrated into one piece's first tear portion 4011 and second tear portion 4012, first tear portion 4011 is fixed breach 4021 department, second tear portion 4012 is fixed catheter 203 is close to on the lateral wall of bottom. The first tear portion 4011 has an arc shape, and the second tear portion 4012 has a rectangular shape.
The functions of the electronic detonation device, the jacking rod, the self-locking limiting structure and the tearing energy-absorbing structure in the embodiment are as follows:
the electronic ignition device 202 is used for igniting the ignitable explosive when the vehicle is in a frontal collision, and is used for jacking the jacking rod 201 forwards during ignition so that the jacking rod 201 moves along the axial direction of the guide pipe 203;
the jacking rod 201 is used for jacking the instrument panel 1 forwards under the pushing of the electronic detonation device 202, so that the instrument panel 1 moves towards the direction close to the legs of the human body;
the self-locking limiting structure 3 is used for locking the lifting rod 201 and the instrument panel 1 when the bottom of the lifting rod 201 moves to the top of the guide pipe 203, so that the instrument panel 1 is kept at a preset position;
and the tearing energy-absorbing structure 4 is used for tearing and deforming under the drive of linear backward movement of the instrument panel and the jacking device after the legs of the human body are contacted with the instrument panel 1 so as to absorb energy.
In addition, active collapse is from locking means in this embodiment still includes the controller, and this controller is connected with the sensor and the electron point that are used for detecting the head-on collision respectively and explodes the device electricity, and after the vehicle took place the head-on collision, the sensor can feed back the relevant information of collision to the controller, and the controller judges whether take place the head-on collision, if make control electron point explode the device, but the electron point explodes the device point and explodes the explosive that ignites, and the jacking pole is jacking forward under the impact of gunpowder explosion the instrument board, makes the instrument board to the direction removal that is close to human shank.
In the embodiment, when a frontal collision occurs, the electronic igniter detonates the explosive, when the explosive detonates, the huge impact force of the explosive explosion causes the jacking rod to lift forwards along the guide pipe, the instrument panel is actively popped out under the action of the lifter to cause the instrument panel to move towards the direction close to the legs of the human body, when the bottom of the jacking rod 201 moves to the top of the guide pipe 203, the jacking rod 201 and the instrument panel 1 are locked, the instrument panel 1 is locked by the self-locking limiting structure and is kept at a preset position, after the knee is contacted with the instrument panel, the impacted instrument panel and the lifter can linearly move backwards, the energy-absorbing tearing structure is torn and deformed under the driving of the linear backward movement of the instrument panel and the lifter to start tearing and absorbing energy, so that the injury to the legs and the upper half of the human body is greatly reduced, and simultaneously, the linear backward movement of the instrument panel can ensure the integral movement posture of the, the movement posture of the human body is in the best state, and the safety score of the dummy is guaranteed.
Example 3
As shown in fig. 2, the invention discloses an instrument panel active ejection self-locking limiting energy absorption device, which is arranged on an instrument panel 1, the number of the instrument panel active ejection self-locking limiting energy absorption devices is multiple, preferably four, and four dynamic ejection self-locking limiting energy absorption devices are uniformly distributed on the surface of the instrument panel far away from a human body, specifically, distributed at four corners of an arc-shaped instrument panel.
As shown in fig. 3 to 5, the active pop-up self-locking limiting energy absorbing device for an instrument panel in this embodiment includes a lifter 2, a self-locking limiting structure 3, and a tearing energy absorbing structure 4, an end of the lifter 2 is fixed on the instrument panel 1, the self-locking limiting structure 3 is disposed on a side wall of the lifter 2 close to the instrument panel 1, the tearing energy absorbing structure 4 is disposed on a side wall of the lifter 2 far from the instrument panel 1, and an end of the tearing energy absorbing structure 4 far from the lifter 2 is fixed on a vehicle body.
Continuing to fig. 3 and 6, the jack 2 includes a jack rod 201, an electric detonating device 202 and a hollow interior and open-topped conduit 203, the jacking rod 201 is movably arranged in the guide pipe 203, the top of the jacking rod protrudes out of the top of the guide pipe 203 and then is fixedly connected with the instrument panel 1, the electric igniter 202 and the ignitable explosive are arranged in the guide pipe 203 and between the bottom of the guide pipe 203 and the bottom of the lifting rod 201, the self-locking limiting structures 3 are a plurality of self-locking limiting structures 3 which are uniformly distributed on the side wall of the guide pipe 203 close to the top, the number of the tearing energy-absorbing structures 4 is multiple, the tearing energy-absorbing structures 4 are uniformly distributed on the side wall of the conduit 203 close to the bottom, the jacking devices 2 are multiple, and the jacking devices 2 are uniformly distributed on the surface, far away from the human body, of the instrument panel 1.
As shown in fig. 7 to 9, the tear energy absorbing structure 4 includes a tear portion 401 and a fixing portion 402, which are integrally formed, and one end of the fixing portion 402 is fixedly connected to the vehicle body, and the other end is fixedly connected to the tear portion 401; the whole shape of fixed part 402 is the character cut in bas-relief, and its tip of keeping away from the automobile body has a breach 4021, tear portion 401 including integrated into one piece's first tear portion 4011 and second tear portion 4012, first tear portion 4011 is fixed breach 4021 department, second tear portion 4012 is fixed catheter 203 is close to on the lateral wall of bottom. The first tear portion 4011 has an arc shape, and the second tear portion 4012 has a rectangular shape.
As shown in fig. 3, 4 and 6, the side wall of the guide tube 203 near the top is provided with a mounting groove 5, and the self-locking limiting structure 3 is arranged in the mounting groove 5.
In this embodiment, from locking limit structure 3 for the locking hook, the structure is as shown in fig. 10 and fig. 11, and it includes fashioned stiff end of body and expansion end, the stiff end is fixed in mounting groove 5, the expansion end is a arch, the shape of stiff end is the rectangle, the shape of expansion end is triangle-shaped.
The functions of the electronic detonation device, the jacking rod, the self-locking limiting structure and the tearing energy-absorbing structure in the embodiment are as follows:
the electronic ignition device 202 is used for igniting the ignitable explosive when the vehicle is in a frontal collision, and is used for jacking the jacking rod 201 forwards during ignition so that the jacking rod 201 moves along the axial direction of the guide pipe 203;
the jacking rod 201 is used for jacking the instrument panel 1 forwards under the pushing of the electronic detonation device 202, so that the instrument panel 1 moves towards the direction close to the legs of the human body;
the self-locking limiting structure 3 is used for locking the lifting rod 201 and the instrument panel 1 through a protrusion at a movable end when the bottom of the lifting rod 201 moves to the top of the guide pipe 203, so that the instrument panel 1 is kept at a preset position;
the tearing energy-absorbing structure 4 is used for tearing and deforming (namely the tearing part 401 is separated from the fixing part 402) under the drive of linear backward movement of the instrument panel and the jacking device after the legs of a human body are contacted with the instrument panel 1, and absorbing energy.
In addition, active collapse is from locking means in this embodiment still includes the controller, and this controller is connected with the sensor and the electron point that are used for detecting the head-on collision respectively and explodes the device electricity, and after the vehicle took place the head-on collision, the sensor can feed back the relevant information of collision to the controller, and the controller judges whether take place the head-on collision, if make the control electron point explode the device point and explode the ignition powder, and the jacking rod is in the impact of powder explosion forward jacking the instrument board, makes the instrument board to the direction removal that is close to human shank.
In this embodiment, when a frontal collision occurs, the electronic igniter detonates the explosive, when the explosive detonates, the huge impact force of the explosive explosion causes the lifting rod to lift forward along the guide tube, the dashboard is actively ejected under the action of the lifter, the dashboard moves towards the direction close to the legs of the human body, when the bottom of the lifting rod 201 moves to the top of the guide tube 203, the protrusion of the movable end of the self-locking limiting structure abuts against the lower surface of the bottom of the lifting rod (i.e. the bottom of the lifting rod is clamped into the protrusion of the movable end), thereby locking the lifting rod 201, as the dashboard is fixedly connected with the lifter, the dashboard 1 is also locked and kept at a preset position, when the knee is in contact with the dashboard, the impacted dashboard and the lifter move back linearly, the tearing energy-absorbing structure generates tearing deformation under the driving of the linear backward movement of the dashboard and the lifter (i.e. the tearing portion 401 is separated from the fixing portion 402), the tearing energy absorption is started, so that the injury to the legs and the upper half of the human body is greatly reduced, and meanwhile, the linear backward movement of the instrument panel can ensure the overall motion posture of the human body, so that the motion posture of the human body is in the optimal state, and the safety score of the dummy is ensured.
Example 4
The embodiment discloses an instrument panel, wherein the surface of the instrument panel, which is far away from a human body, is provided with an active ejecting self-locking limiting energy absorption device of the instrument panel as described in embodiments 1-3.
The embodiment of the invention has the following beneficial effects:
(1) the active ejecting self-locking energy absorption device comprises a jacking device, a self-locking limiting structure and a tearing energy absorption structure, wherein when frontal collision occurs, an instrument panel positioned in front of a knee of a human body is actively ejected under the action of the jacking device, so that the instrument panel moves towards the direction close to the leg of the human body, the instrument panel is locked by the self-locking limiting structure when moving for a preset distance, after the knee is contacted with the instrument panel, the impacted instrument panel and the jacking device linearly move backwards, the tearing energy absorption structure is torn and deformed under the driving of the linear backwards movement of the instrument panel and the jacking device, and starts to tear and absorb energy, so that the injury to the leg of the human body is greatly reduced, meanwhile, the linear backwards movement of the instrument panel can ensure the integral movement posture of the human body, so that the movement posture of the human body is in the optimal state, and the;
(2) the active ejection self-locking energy absorption device can greatly reduce the damage of the front collision to the legs of the human body and simultaneously ensure the integral motion posture of the human body only by the mutual matching of the three parts of the jacking device, the self-locking limiting structure and the tearing energy absorption structure;
(3) the active pop-up self-locking energy absorption device is arranged on the instrument panel, and the shape of the instrument panel does not need to be improved, namely the structure of a vehicle does not need to be improved, so that the active pop-up self-locking energy absorption device can adapt to different vehicle types, and has wider application scenes and range.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. The active ejecting self-locking limiting energy absorption device for the instrument panel is characterized by comprising a jacking device (2), a self-locking limiting structure (3), a tearing energy absorption structure (4) and a controller, wherein the end part of the jacking device (2) is fixed on the instrument panel (1), the self-locking limiting structure (3) is arranged on the side wall, close to the instrument panel (1), of the jacking device (2), the tearing energy absorption structure (4) is arranged on the side wall, far away from the instrument panel (1), of the jacking device (2), and the end part, far away from the jacking device (2), of the tearing energy absorption structure (4) is fixed on a vehicle body;
the jacking device (2) is used for jacking the instrument panel (1) forwards when the vehicle has a frontal collision, so that the instrument panel (1) moves towards the direction close to the legs of a human body;
the controller is electrically connected with the jacking device (2) and is used for controlling the jacking device (2) to jack the instrument panel (1) forwards when a vehicle has a frontal collision; the self-locking limiting structure (3) is used for locking the instrument panel (1) when the instrument panel (1) moves for a preset distance;
the tearing energy absorption structure (4) is used for tearing and deforming to absorb energy after the legs of a human body are contacted with the instrument panel (1);
the tearing energy-absorbing structure (4) comprises a tearing part (401) and a fixing part (402) which are integrally formed, one end of the fixing part (402) is fixedly connected with a vehicle body, and the other end of the fixing part (402) is fixedly connected with the tearing part (401); the end, far away from the vehicle body, of the fixing part (402) is provided with a notch (4021), the tearing part (401) comprises a first tearing part (4011) and a second tearing part (4012) which are integrally formed, the first tearing part (4011) is fixed at the notch (4021), and the second tearing part (4012) is fixed on the side wall, close to the bottom, of the catheter (203); the first tearing portion (4011) is arc-shaped, and the second tearing portion (4012) is rectangular.
2. The active instrument panel ejection self-locking limiting energy absorbing device according to claim 1, wherein the jack (2) comprises a jacking rod (201), an electronic detonation device (202) and a hollow guide tube (203) with an open top, the jacking rod (201) is movably arranged in the guide tube (203), the top of the jacking rod protrudes out of the top of the guide tube (203) and then is fixedly connected with the instrument panel (1), the electronic detonation device (202) is arranged in the guide tube (203) and is located between the bottom of the guide tube (203) and the bottom of the jacking rod (201), and the self-locking limiting structure (3) is arranged on the side wall of the guide tube (203) close to the top; the electronic ignition device (202) is used for igniting when the vehicle is in a frontal collision and is used for jacking the jacking rod (201) forwards during ignition so that the jacking rod (201) moves along the axial direction of the guide pipe (203); the jacking rod (201) is used for jacking the instrument panel (1) forwards under the pushing of the electronic detonation device (202) so as to enable the instrument panel (1) to move towards the direction close to the legs of a human body; the self-locking limiting structure (3) is used for locking the lifting rod (201) and the instrument panel (1) when the bottom of the lifting rod (201) moves to the top of the guide pipe (203), so that the instrument panel (1) is kept at a preset position.
3. The active ejection self-locking limiting energy absorbing device for the instrument panel as claimed in claim 1, wherein the number of the tearing energy absorbing structures (4) is multiple, and the plurality of the tearing energy absorbing structures (4) are uniformly distributed on the side wall of the conduit (203) close to the bottom.
4. The active ejecting self-locking limiting energy absorbing device for the instrument panel as claimed in claim 3, wherein the number of the self-locking limiting structures (3) is multiple, and the multiple self-locking limiting structures (3) are uniformly distributed on the side wall of the conduit (203) close to the top.
5. The active ejection self-locking limiting energy absorption device for the instrument panel as claimed in claim 4, wherein a mounting groove (5) is formed in the side wall of the guide pipe (203) close to the top, and the self-locking limiting structure (3) is arranged in the mounting groove (5).
6. An active instrument panel ejection self-locking limiting energy absorption device according to claim 5, wherein the self-locking limiting structure (3) is a locking hook.
7. The active instrument panel ejection self-locking limiting energy absorption device as claimed in claim 6, wherein gunpowder for igniting the electronic ignition device (202) is further arranged between the bottom of the guide tube (203) and the bottom of the jacking rod (201).
8. The active ejecting self-locking limiting energy absorbing device for the instrument panel according to claim 1, wherein the number of the lifters (2) is multiple, and the plurality of the lifters (2) are uniformly distributed on the surface of the instrument panel (1) far away from a human body.
9. An instrument panel, characterized in that the surface of the instrument panel far away from the human body is provided with an active ejection self-locking limiting energy absorption device of the instrument panel as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602910.5A CN108909850B (en) | 2018-06-12 | 2018-06-12 | Active ejecting self-locking limiting energy absorption device of instrument board and instrument board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602910.5A CN108909850B (en) | 2018-06-12 | 2018-06-12 | Active ejecting self-locking limiting energy absorption device of instrument board and instrument board |
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| CN108909850A CN108909850A (en) | 2018-11-30 |
| CN108909850B true CN108909850B (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11827359B2 (en) | 2022-04-01 | 2023-11-28 | B/E Aerospace, Inc. | Devices for HIC reduction |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733318A (en) * | 2019-02-27 | 2019-05-10 | 吉利汽车研究院（宁波）有限公司 | Centre gangway and automobile |
| CN110281707A (en) * | 2019-06-20 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of broken device of tyre, system and automobile |
| CN112193065A (en) * | 2020-10-13 | 2021-01-08 | 浙江吉利控股集团有限公司 | Floor type accelerator pedal capable of actively collapsing and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004268713A (en) * | 2003-03-07 | 2004-09-30 | Calsonic Kansei Corp | Knee protection device for vehicle |
| JP4152914B2 (en) * | 2004-03-29 | 2008-09-17 | トヨタ自動車株式会社 | Knee protector |
| JP2009208694A (en) * | 2008-03-05 | 2009-09-17 | Toyoda Gosei Co Ltd | Actuator |
| CN203854537U (en) * | 2014-03-31 | 2014-10-01 | 长城汽车股份有限公司 | Seat cushion structure suitable for vehicle head-on collision |
| CN106541984B (en) * | 2015-09-18 | 2019-09-20 | 北汽福田汽车股份有限公司 | The energy-absorbing component of steering column and vehicle with it |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11827359B2 (en) | 2022-04-01 | 2023-11-28 | B/E Aerospace, Inc. | Devices for HIC reduction |
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